skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Crystal structure of the inversion-breaking metal Cd 2 Re 2 O 7

Journal Article · · Physical Review B

Second harmonic generation (SHG) on the pyrochlore metal Cd2Re2O7 indicates the presence of three order parameters setting in below an inversion breaking transition. Here, we explore a possible structural explanation and relate it not only to the SHG data but also to neutron and x-ray diffraction, where we find that such a structural scenario can explain certain reflection extinctions observed in single crystal x-ray data. From this analysis, we suggest future experiments that could be done to resolve this matter. Lastly, we comment on the Landau-violating nature of the inversion breaking transition and its relation to similar phenomena observed in improper ferroelectrics.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1582583
Journal Information:
Physical Review B, Vol. 101, Issue 4; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

References (26)

Structural ordering and symmetry breaking in Cd 2 Re 2 O 7 journal October 2002
Pyrochlore Oxide Superconductor Cd 2 Re 2 O 7 Revisited journal February 2018
Electronic structure of pyrochlore Cd 2 Re 2 O 7 journal April 2009
Structural Order Parameter in the Pyrochlore Superconductor Cd 2 Re 2 O 7 journal July 2003
Electric Toroidal Quadrupoles in the Spin-Orbit-Coupled Metal Cd 2 Re 2 O 7 journal April 2019
The pyrochlore family ? a potential panacea for the frustrated perovskite chemist journal January 2004
Tetrahedral Magnetic Order and the Metal-Insulator Transition in the Pyrochlore Lattice of Cd 2 Os 2 O 7 journal June 2012
Formation and Control of Twin Domains in the Pyrochlore Oxide Cd 2 Re 2 O 7 journal October 2018
Improper ferroelectricity in perovskite oxide artificial superlattices journal April 2008
Low Temperature Symmetry of Pyrochlore Oxide Cd 2 Re 2 O 7 journal November 2002
Order-disorder-order phase transitions in the pyrochlore superconductor Cd 2 Re 2 O 7 journal June 2005
Local structure in the paraelectric phase of Cd 2 Nb 2 O 7 determined from x-ray diffuse scattering, by means of ab initio molecular dynamics and Monte Carlo modeling journal January 2010
Parity-Breaking Phases of Spin-Orbit-Coupled Metals with Gyrotropic, Ferroelectric, and Multipolar Orders journal July 2015
A parity-breaking electronic nematic phase transition in the spin-orbit coupled metal Cd 2 Re 2 O 7 journal April 2017
Metallic “Ferroelectricity” in the Pyrochlore C d 2 R e 2 O 7 journal February 2004
The crystal structure of Cd 2 Nb 2 O 7 : symmetry mode analysis of the ferroelectric phase journal April 2010
The Role of Trilinear Couplings in the Phase Transitions of Aurivillius Compounds journal October 2010
Nonlinear optical signatures of the tensor order in Cd2Re2O7  journal August 2006
Mechanism of Enhanced Optical Second-Harmonic Generation in the Conducting Pyrochlore-Type Pb 2 Ir 2 O 7 x Oxide Compound journal May 2013
Hybrid Improper Ferroelectricity: A Mechanism for Controllable Polarization-Magnetization Coupling journal March 2011
AMPLIMODES : symmetry-mode analysis on the Bilbao Crystallographic Server journal September 2009
Nature of the tensor order in Cd 2 Re 2 O 7 journal September 2017
Tetrahedral Magnetic Order and the Metal-Insulator Transition in the Pyrochlore Lattice of Cd2Os2O7 text January 2012
Parity-breaking phases of spin-orbit-coupled metals with gyrotropic, ferroelectric and multipolar orders text January 2015
Formation and Control of Twin Domains in the Pyrochlore Oxide Cd2Re2O7 text January 2018
Structural Order Parameter in the Pyrochlore Superconductor Cd2Re2O7 text January 2003

Similar Records

Nature of the tensor order in Cd2Re2O7
Journal Article · Fri Sep 01 00:00:00 EDT 2017 · Physical Review B · OSTI ID:1582583

Spin freezing into a disordered state in CaFeTi2O6 synthesized under high pressure
Journal Article · Fri Aug 03 00:00:00 EDT 2018 · Physical Review B · OSTI ID:1582583

Local structure and its implications for the relaxor ferroelectric Cd 2 Nb 2 O 7
Journal Article · Tue Sep 06 00:00:00 EDT 2022 · Physical Review Research · OSTI ID:1582583